Built 1840

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CSX Middlefield River Bridge (Hampden County, Massachusetts)
Built 1840
Stone arch bridge over West Branch of Westfield River on Railroad
Open to traffic

Depot Bridge (Rutland County, Vermont)
Built 1840
Lattice through truss bridge over Otter Creek on Florence Road
Open to traffic

Flat Rock Tunnel (Montgomery County, Pennsylvania)
Construction started 1838, completed 1840 by the Reading Railroad, widened 1859-60. Height increased early 21st century
Bridge on Norfolk Southern Railroad


Genesee Greenway Bridge (Monroe County, New York)
Built in 1840 to carry the Genesee Valley Canal over Black Creek
Stone arch bridge over Black Creek on Genesee Greenway
Part of Genesee Greenway Trail

Howard's Bridge (Oglethorpe County, Georgia)
Covered lattice bridge over Red Oak Creek
Closed to all traffic

Keystone Bridge A (Berkshire County, Massachusetts)
Built 1840, Bypassed/Abandoned 1912, Converted to a trail 2000-2001
Stone arch bridge over Middlefield River on Trail
Open to Pedestrians and Equestrians

Keystone Bridge B (Hampshire County, Massachusetts)
Built 1840, Bypassed/Abandoned 1912, Converted to a trail 2000-2001
Stone arch bridge over Middlefield River on Trail
Open to pedestrians only

Keystone Bridge C (Hampshire County, Massachusetts)
Built 1840, Bypassed/Abandoned 1912
Abandoned stone arch bridge over Middlefield River on Railroad
Abandoned

Miami & Erie Canal Aqueduct (Montgomery County, Ohio)
Washed out in 1913 flood
Lost Aqueduct over Mad River on the Miami & Eric Canal
Destroyed by flood

Mongul Bridge (Franklin County, Pennsylvania)
Built in 1840 before the village Mongul even existed, Replaced 1964
Lost Closed-spandrel arch bridge over Conodoguinet Creek on Sr 4016 (Roxbury Road)
Replaced by new bridge

Old Carr Bridge (Hillsborough County, New Hampshire)
Built in 1840 by Captain Jonathan Carr
Stone arch bridge over Beard's Brook on Jones Road in Hillsborough
Open to traffic

Orrstown Bridge (Franklin County, Pennsylvania)
Built in 1840; Replaced 1940
Lost Stone arch bridge over Conodoguinet Creek on Pa 433; Sr 0433 (Tanyard Hill Rd)
Replaced by new bridge

Poffenberger Road Bridge (Washington County, Maryland)
Built 1840; rehabilitated 1979
Stone arch bridge over Antietam Creek on Poffenberger Road in Funkstown
Open to traffic

Richlieu Road Bridge in Bensalem Township, PA (Bucks County, Pennsylvania)
Built 1840
Two-span stone arch bridge over Poquessing Creek on Richlieu Road in Bnsalem Township, PA
Closed to all traffic

Savage River Bridge (Garrett County, Maryland)
Built 1840
Stone arch bridge over Savage River on MD 733A
Open to traffic

Silk Road Bridge (Bennington County, Vermont)
Built 1840; rehabilitated 1991
Covered bridge over Walloomsac River on C3026 in Bennington
Open to traffic

Upper Falls Covered Bridge (Windsor County, Vermont)
Built 1840; Rebuilt in 2008
Covered bridge over Black River on Upper Falls Rd (C3020) in Weathersfield
Open to traffic

Waterloo Bridge (Merrimack County, New Hampshire)
Built 1840; rehabilitated 1970
Covered bridge over Warner River on New Market Road in Warner
Open to traffic

Woodsville Road Bridge (Hunterdon County, New Jersey)
Built 1840; rehabilitated 1920
Stone arch bridge over Peters Brook on Woodsville Road
Open to traffic